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Re: [dm-devel] open-iscsi + dm-multipath



On Tue, 2005-03-22 at 16:13 +0100, Christophe Varoqui wrote:
> On Sat, Mar 12, 2005 at 12:03:11PM -0800, Dmitry Yusupov wrote:
> > Hi Guys!
> > 
> > had anyone tried to setup open-iscsi with dm-multipath yet?
> > I think it should work out of the box, but would be cool if someone will
> > double check on that.
> > 
> > PS: www.open-iscsi.org is a new cool project which features some
> > noticeable performance improvements for soft-based iSCSI Initiator plus
> > other number of exciting abilities such as independent transport and
> > better user-space vs. kernel split. Read more on project's web page.
> > 
> Hello,
> 
> Does your log.[ch] implementation works around syslog blocking behaviour in memory contention situation ?

yep syslog sucks.
as of now, our logger still based on syslog. its missing some stuff.
There is another logger which proved to work under memory pressure -
ha_logd from HA project. if I will have time, I'll merge some stuff from
ha_logd to log.[ch].

> If so, I would like to fetch it in multipath-tools, with your agreement.
> Also, if you have better ideas on the subject, I'm interested in reading them :)

so, try ha_logd. Also I saw in your code mlockall() right after
syslog(). Could you explain why we need it? I think just one call at the
beginning phase should be enough unless you fork?

> Regards,
> cvaroqui
> 
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